Question 1
Which definition of a Lewis acid is correct?
Electron pair donor
Electron pair acceptor
Proton donor
Proton acceptor
0%
DP IB Chemistry: HL
Topic Questions
18.1 Further Aspects of Acids & Bases
Question 2
Which type of titration is indicated by the following pH curve?
Strong acid - strong base
Weak acid - weak base
Strong acid - weak base
Weak acid - strong base
Question 3
Which of the following best describes ammonia, NH3 , in the following equation?
BF3 + NH3 → BF3NH3
Lewis acid
Lewis base
Coordinate bond
Brønsted-Lowry acid
Question 4
Which mixture cannot act as a buffer?
CH3COOH (aq) and CH3COONa (aq)
CH3CH2COOH (aq) and CH3CH2COONa (aq)
HNO3 (aq) and NaOH (aq)
NH3 (aq) and NH4Cl (aq)
Question 5
The hydrolysis of ammonium chloride takes place via the following reaction.
NH4+ + H2O → H3O+ + NH3
Which of the following is correct?
The resultant pH is above 7
The resultant pH is 7
The resultant pH is below 7
Ammonium chloride is insoluble
